SOURCE

function passthru(literals) {
    console.log(literals,arguments)
  let result = '';
  let i = 0;

  while (i < literals.length) {
      
    result += literals[i++];
    if (i < arguments.length) {
      result += arguments[i];
    }
  }

    console.log(result)
  return result;
}
  const [a, b, c] = [2, 2, 3];

 passthru`'a' + ${a} + ${b} + ${c}= ${a + b + c} + 'n'`;
 passthru`${a} + ${b} + ${c}= ${a + b + c}`